Discoaster aecus

Bronniman & Stradner, 1960 Oct 04, 2026

Set number: 4582

  • Discoaster salisburgensis VR 29161 1
  • Discoaster salisburgensis VR 29162 2
  • Discoaster salisburgensis VR 29163 3
  • Discoaster salisburgensis VR 29164 4
  • Discoaster salisburgensis VR 29165 5
  • Discoaster salisburgensis VR 29166 6
  • Discoaster salisburgensis VR 29167 7
  • Discoaster salisburgensis VR 29168 8
  • Discoaster salisburgensis VR 29169 9
  • Discoaster salisburgensis VR 29170 10
  • Discoaster salisburgensis VR 29171 11
  • Discoaster salisburgensis VR 29172 12
  • Discoaster salisburgensis VR 29173 13
  • Discoaster salisburgensis VR 29174 14
  • Discoaster salisburgensis VR 29175 15
  • Discoaster salisburgensis VR 29176 16
  • Discoaster salisburgensis VR 29177 17
  • Discoaster salisburgensis VR 29178 18
  • Discoaster salisburgensis VR 29179 19
  • Discoaster salisburgensis VR 29180 20
  • Discoaster salisburgensis VR 29181 21
  • Discoaster salisburgensis VR 29182 22
  • Discoaster salisburgensis VR 29183 23
  • Discoaster salisburgensis VR 29184 24
  • Discoaster salisburgensis VR 29185 25
  • Discoaster salisburgensis VR 29186 26
  • Discoaster salisburgensis VR 29187 27
  • Discoaster salisburgensis VR 29188 28
  • Discoaster salisburgensis VR 29189 29
  • Discoaster salisburgensis VR 29190 30
  • Discoaster salisburgensis VR 29191 31
  • Discoaster salisburgensis VR 29192 32
  • Discoaster salisburgensis VR 29193 33
  • Discoaster salisburgensis VR 29194 34
  • Discoaster salisburgensis VR 29195 35
  • Discoaster salisburgensis VR 29196 36
  • Discoaster salisburgensis VR 29197 37
  • Discoaster salisburgensis VR 29198 38
  • Discoaster salisburgensis VR 29199 39
  • Discoaster salisburgensis VR 29200 40
  • Discoaster salisburgensis VR 29201 41
  • Discoaster salisburgensis VR 29202 42
  • Discoaster salisburgensis VR 29203 43
  • Discoaster salisburgensis VR 29204 44
  • Discoaster salisburgensis VR 29205 45
  • Discoaster salisburgensis VR 29206 46
  • Discoaster salisburgensis VR 29207 47
  • Discoaster salisburgensis VR 29208 48
  • Discoaster salisburgensis VR 29209 49
  • Discoaster salisburgensis VR 29210 50
  • Discoaster salisburgensis VR 29211 51
  • Discoaster salisburgensis VR 29212 52
  • Discoaster salisburgensis VR 29213 53
  • Discoaster salisburgensis VR 29214 54
  • Discoaster salisburgensis VR 29215 55
    10µm
Discoaster aecus, Early Eocene, Santos Basin, Brazil

Set number: 4593

  • Discoaster aecus VR 30484 1
  • Discoaster aecus VR 30485 2
  • Discoaster aecus VR 30486 3
  • Discoaster aecus VR 30487 4
  • Discoaster aecus VR 30488 5
  • Discoaster aecus VR 30489 6
  • Discoaster aecus VR 30490 7
  • Discoaster aecus VR 30491 8
  • Discoaster aecus VR 30492 9
  • Discoaster aecus VR 30493 10
  • Discoaster aecus VR 30494 11
  • Discoaster aecus VR 30495 12
  • Discoaster aecus VR 30496 13
  • Discoaster aecus VR 30497 14
  • Discoaster aecus VR 30498 15
  • Discoaster aecus VR 30499 16
  • Discoaster aecus VR 30500 17
  • Discoaster aecus VR 30501 18
  • Discoaster aecus VR 30502 19
  • Discoaster aecus VR 30503 20
  • Discoaster aecus VR 30504 21
  • Discoaster aecus VR 30505 22
  • Discoaster aecus VR 30506 23
  • Discoaster aecus VR 30507 24
  • Discoaster aecus VR 30508 25
  • Discoaster aecus VR 30509 26
  • Discoaster aecus VR 30510 27
  • Discoaster aecus VR 30511 28
  • Discoaster aecus VR 30512 29
  • Discoaster aecus VR 30513 30
  • Discoaster aecus VR 30514 31
  • Discoaster aecus VR 30515 32
  • Discoaster aecus VR 30516 33
  • Discoaster aecus VR 30517 34
  • Discoaster aecus VR 30518 35
  • Discoaster aecus VR 30519 36
  • Discoaster aecus VR 30520 37
  • Discoaster aecus VR 30521 38
  • Discoaster aecus VR 30522 39
  • Discoaster aecus VR 30523 40
  • Discoaster aecus VR 30524 41
  • Discoaster aecus VR 30525 42
  • Discoaster aecus VR 30526 43
  • Discoaster aecus VR 30527 44
  • Discoaster aecus VR 30528 45
  • Discoaster aecus VR 30529 46
    10µm
Discoaster aecus, Middle Eocene, DSDP Leg 39, Sites 356, Sào Paulo Plateau, South Atlantic Ocean
Final Epithet
Discoaster aecus Bronniman & Stradner, 1960
Basionym

Discoaster aecus Bronniman & Stradner, 1960

Synonyms

Discoaster salisburgensis Stradner, 1961

Discoaster circularis Hoffmann, 1970

Discoaster praebifax Wei & Wise, 1989

References

Brönnimann, P. & Stradner, H. 1960. Die Foraminiferen- und Discoasteriden-zonen von Kuba und ihre interkontinentale Korrelation. Erdoel-Zeitschrift 76(10): 364-369.

Hoffmann, N. 1970d. Elektronenmikroskopische Untersuchungen an Discoasteriden aus dem Ober-Eozan der Bohrung Salzwedel 202/64 (Altmark). Hallesches Jahrbuch für Mitteldt. Erdg. 10: 7-26.

Stradner, H. 1961. Vorkommen von Nannofossilien im Mesozoikum und Alttertiär. Erdoel-Zeitschrift 77(3): 77-88.

Wei, W. & Wise, S. W. 1989. Paleogene calcareous nannofossil magnetobiochronology: Results from South Atlantic DSDP Site 516. Marine Micropaleontology. 14: 119-152.

Taxonomy
Discoaster
Neostellates produce interference colours
Neostellates, 3 to 6 long arm, with simple tips
Neostellates, 4 to 6 long arms with bifurcation
Neostellates, 4 to 8 arms with bifurcation
Neostellates, 6 short arms with simple tips
Neostellates, bulged central area with proximal ridges
Neostellates, bulged central area with sutural & proximal ridges
Neostellates, featureless central area with distal ridges
Neostellates, proximal ridges give rise to a third furcation
Neostellates, with distal & proximal knobs
Rosettes, >10 arms
Rosettes, proximal & distal processes, >10 arms
Stellate malformed
Stellates, 4 to 5 arms with bifurcation
Stellates, 5 to 9 arms with bifurcation & nodes
Stellates, often curved arms with simple tips
Uncategorised
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Paleogene
        • Eocene
          • Early Eocene
            • Ypresian
        • Paleocene
          • Late Paleocene
            • Thanetian
Stratigraphic Range
Thanetian - Ypresian
Age (Ma)
59.24? - 48.07?